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Black Corners on top of image

Is there a way to adjust lens so top aspherism isn't on the image when P100 is shooting wide?

Black shadows are on both corners until lens zooms in by a third.

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I guess this sign of moisture in the lens.

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I appreciate the suggestion, but I live in a very dry part of the country. Humidity is rarely above 10%. I think it is the lens is not quite lining up in the widest aperture. But I am unsure if I can adjust it without specialized tools.

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